Link/ Boeings Killer Drone
"With traditional, manned fighters growing more expensive, and consequently rarer, by the day, unmanned warplanes are rising to take their place. Boeing isn't alone in testing pilotless jet fighters. Northrop Grumman, Lockheed, General Atomics, European firm EADS, British BAE Systems and Swedish plane-maker Saab are also working on killer drones. Each company's UCAS surely has its own secret history."